Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| SwitchType | General Purpose |
| NumberofOutputs | 1 |
| Ratio-Input:Output | 1:1 |
| OutputConfiguration | High Side |
| OutputType | N-Channel |
| Interface | On/Off |
| Voltage-Load | 2.5V ~ 6.5V |
| Voltage-Supply(Vcc/Vdd) | Not Required |
| Current-Output(Max) | 5A |
| RdsOn(Typ) | 22mOhm |
| InputType | Non-Inverting |
| Features | Slew Rate Controlled, Status Flag |
| FaultProtection | Current Limiting (Adjustable), Over Temperature, UVLO |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 8-SON (3x3) |
Overview
Description
The TPS2557DRBR is a precision adjustable current-limited power-distribution switch from Texas Instruments. It is primarily used to protect systems and loads from overcurrent conditions in applications like USB ports, hot-swap environments, and other power distribution systems. The device features adjustable current limiting, allowing users to set a precise current threshold, enhancing flexibility in diverse applications.
Key features include:
- Wide operating voltage range from 2.5V to 6.5V
- Adjustable current limit (75mA to 1.3A)
- Fast short-circuit response time
- Built-in reverse current blocking
- Thermal shutdown protection
- Fault reporting with an open-drain output
- Small footprint with a 6-pin SON package
The TPS2557DRBR enhances reliability by safeguarding against overcurrent, short circuits, and thermal overloads. Its precise current limiting and small package make it suitable for compact, high-density designs. Additionally, the device supports various operational and environmental conditions, making it versatile for many electronic applications.
Key features include:
- Wide operating voltage range from 2.5V to 6.5V
- Adjustable current limit (75mA to 1.3A)
- Fast short-circuit response time
- Built-in reverse current blocking
- Thermal shutdown protection
- Fault reporting with an open-drain output
- Small footprint with a 6-pin SON package
The TPS2557DRBR enhances reliability by safeguarding against overcurrent, short circuits, and thermal overloads. Its precise current limiting and small package make it suitable for compact, high-density designs. Additionally, the device supports various operational and environmental conditions, making it versatile for many electronic applications.
Equivalent
The TPS2557DRBR is a USB power switch from Texas Instruments. Equivalent products include:
1. MIC2005A from Microchip Technology
2. AP2161 from Diodes Incorporated
3. MAX14521E from Maxim Integrated (now part of Analog Devices)
4. ST2043 from STMicroelectronics
These products have similar functions and specifications, but it's essential to verify compatibility with your specific application requirements.
1. MIC2005A from Microchip Technology
2. AP2161 from Diodes Incorporated
3. MAX14521E from Maxim Integrated (now part of Analog Devices)
4. ST2043 from STMicroelectronics
These products have similar functions and specifications, but it's essential to verify compatibility with your specific application requirements.
Features
The TPS2557DRBR is a current-limiting power distribution switch designed to protect systems and enhance reliability. Key features include:
1. Adjustable Current Limit: It allows for adjustable current limiting between 500mA and 5.7A, providing flexibility for various applications.
2. Overcurrent Protection: The device includes an overcurrent protection mechanism to prevent damage during fault conditions.
3. Overtemperature Protection: The switch shuts down if the temperature exceeds safe operating limits to prevent thermal damage.
4. Reverse Current Blocking: It features reverse current blocking to prevent current from flowing back from the output to the input.
5. Low On-Resistance: The switch offers low on-resistance for efficient power transfer and minimal power loss.
6. Fault Reporting: It has a fault output to signal fault conditions to a microcontroller or other monitoring devices.
7. Wide Input Voltage Range: The TPS2557DRBR operates from 2.5V to 6.5V, suitable for a variety of power supply systems.
8. Compact Package: Available in a small, space-saving SON-8 package, ideal for portable and space-constrained applications.
These features make the TPS2557DRBR suitable for applications requiring robust power management and protection.
1. Adjustable Current Limit: It allows for adjustable current limiting between 500mA and 5.7A, providing flexibility for various applications.
2. Overcurrent Protection: The device includes an overcurrent protection mechanism to prevent damage during fault conditions.
3. Overtemperature Protection: The switch shuts down if the temperature exceeds safe operating limits to prevent thermal damage.
4. Reverse Current Blocking: It features reverse current blocking to prevent current from flowing back from the output to the input.
5. Low On-Resistance: The switch offers low on-resistance for efficient power transfer and minimal power loss.
6. Fault Reporting: It has a fault output to signal fault conditions to a microcontroller or other monitoring devices.
7. Wide Input Voltage Range: The TPS2557DRBR operates from 2.5V to 6.5V, suitable for a variety of power supply systems.
8. Compact Package: Available in a small, space-saving SON-8 package, ideal for portable and space-constrained applications.
These features make the TPS2557DRBR suitable for applications requiring robust power management and protection.
Pinout
The TPS2557DRBR is an adjustable current-limited power-distribution switch by Texas Instruments, often used for USB applications. It is housed in an 8-pin SON (Small Outline No-lead) package.
Here is a brief overview of its pin functions:
1. IN: Power input. Connect to the power supply.
2. OUT: Power output. Connect to the load.
3. GND: Ground.
4. ILIM: Current limit set. Connect a resistor to set the desired current limit.
5. EN: Enable input. Active high; drive high to enable the device.
6. FAULT: Fault indicator. Open-drain output that goes low in case of an overcurrent or overtemperature fault.
7. NC: No connection. Should be left floating or connected to ground.
8. NC: No connection. Should be left floating or connected to ground.
The TPS2557 supports a current range usually from 500 mA to 5 A, adjustable via the ILIM pin, and is designed for applications requiring circuit protection and power distribution.
Here is a brief overview of its pin functions:
1. IN: Power input. Connect to the power supply.
2. OUT: Power output. Connect to the load.
3. GND: Ground.
4. ILIM: Current limit set. Connect a resistor to set the desired current limit.
5. EN: Enable input. Active high; drive high to enable the device.
6. FAULT: Fault indicator. Open-drain output that goes low in case of an overcurrent or overtemperature fault.
7. NC: No connection. Should be left floating or connected to ground.
8. NC: No connection. Should be left floating or connected to ground.
The TPS2557 supports a current range usually from 500 mA to 5 A, adjustable via the ILIM pin, and is designed for applications requiring circuit protection and power distribution.
Manufacturer
The TPS2557DRBR is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is an American technology company that specializes in designing and manufacturing semiconductors and various integrated circuits. It serves a wide array of industries by providing products that are essential for electronics systems, including analog chips, digital signal processors, microcontrollers, and embedded processors. TI is a significant player in the electronics sector, known for its innovation and extensive product range that supports industrial, automotive, personal electronics, and communication equipment applications.
Application
The TPS2557DRBR is a power-distribution switch designed for applications requiring current limiting and circuit protection. Key application areas include:
1. USB Ports and Hubs: Ensures overcurrent protection and power management in USB interfaces.
2. Telecommunications Equipment: Provides current limiting and circuit protection in networking devices.
3. Consumer Electronics: Offers power management solutions in devices such as set-top boxes and gaming consoles.
4. Computing Systems: Used in desktop and notebook PCs for efficient power distribution.
5. Industrial Automation: Protects circuits in automated equipment and machinery.
6. Battery-Powered Devices: Manages power distribution and enhances battery life in portable devices.
These applications benefit from the device's precision current limiting and robust fault protection features.
1. USB Ports and Hubs: Ensures overcurrent protection and power management in USB interfaces.
2. Telecommunications Equipment: Provides current limiting and circuit protection in networking devices.
3. Consumer Electronics: Offers power management solutions in devices such as set-top boxes and gaming consoles.
4. Computing Systems: Used in desktop and notebook PCs for efficient power distribution.
5. Industrial Automation: Protects circuits in automated equipment and machinery.
6. Battery-Powered Devices: Manages power distribution and enhances battery life in portable devices.
These applications benefit from the device's precision current limiting and robust fault protection features.
Package
The TPS2557DRBR is housed in a SON (Small Outline No-lead) package. Specifically, it is an 8-pin SON package with a 3mm x 3mm body size, often referred to by its packaging code "DRB." This type of package is designed for efficient thermal performance and compact footprint in electronics applications.
